Boiler cleaner



March 30 1926. 1,578,318

E. E. JOHNSON oILER CLEANER Filed July e 1925 Patented lidar. 3Q,

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PATENT10% 'Bort/En CLEANER.

T aZZwhmn timmy/"concern:

Be it'lnowii that EDWARDEB. JOHNSON, a A citizen of the United States of America, re-.

i siding at St. Louis, State of Missouri, has

invented certain vnew and usefulflmprove' inents in Boiler Cleaners', ofwhich the fol lowing is a specification.

The object ofmy invention is to make a boiler cleaner, particularly one which will remove mud, scale, andfpreventwpriming and ,i which will preventl new scale from forming and gradually reinovejold scale. Ahfurther i object is to make a boiler cleaner which will remove not lonly the sediiijient at the bottom of the boiler, but the" impurities and froth at the water line inthe boiler. 'A still further object is to malte' ay boilerV cleaner that g is made of few and .simpleparts'that lend themselves readily to, multiple production, that can be easily and cheaplyinade and assembled, and placed in a lhoiler-without perforating it further than it is normally. A `still `further object istoso shape the apertures or perforations-.inthe pipes of'niy device so as to prevent clogging with for-` eign substance. l

With these` and other objects in view, my invention has relation to certain novel features of construction and arrangement of parts,"as will be hereinafter more full)r described, pointed out` in the claim, andillustrated in the drawing, in which Fig.' 1 is a fragmental sectional elevation tion of a portion ofmy sediment collector. p

Fig. 6 is a transverse sectional elevation on the line 6-6 of Fig. 5.

yNumeral 7 designates the shell of a boiler having theblow-oif opening 8, together with the cover 9. Numeral 10 designates the head, numeral 11 the tubes, and numberrlQ the water line. n j

My device consists of a shell13, which is made of met-al and is the fragment of a l "K5, Application Y filed July' 6,"

- collector 3, as best shown in Fig. l.

1325. A sei-iai ivo. 41,785.r

hollow sphere in5sliape-fi`1ts edges are curved to conform tothe curvature ofthe boilershell 7 and'it is `positioned over the I blow-ofopening 8 and Yis of suicient size to completely cover said blowoff-opening 8. The shell 13 is held in the shell 7 'l over ythe blow-off opening Formed integral with the shell 13 is thejLjl 8 gravitationally.

litting 14 and the nipple yfitting 15.v The pipe 16l is placed in threaded "engagement in;

the nippleittingl and-.isgof suchlengthf` A so thatits top is submerged'inthe water; a few inches.` To the top ofl thepipe'lf',"

in threaded engagement is secure'd'jv the skimmer 17 which consists of a'pipe'having the threaded holeQ18. by which it -is'secfuredr y,

to thepipe 16,and havingthreadedendsl Y* into one of which, namely, the 'left ,one in Fig. 1, aplug is screwed, blocking tl'ia'tend Into` the otherend tof the4 skimmer 17 is Vscrewed the ypipe 19.,"0112 the upper surface vof the ,skimmer interof the skimmer.

mediateits lengthfis integrally r secured -a boss 20, having-"theaperture'm21A foi-inedV The aperturey 21 in establishing j therein; fluid communication between Vthe skimmer 17 and the 'exterior of the' boss 20 `is iiiadc j larger on its interior end and contracted on'its exterior end.

llhr'ough' the L fitting 14 inv threadedengagement by means of thevnipple 22, the sedi-4 ment kcollector 23 -is placed in fluid com# .i i

munication with the exterior of the shell 13. The sediment collector 23 consists of a pipe ing ateach end. In its lower surface, which oc i 24 having the feet 25 and the threaded open- I is heldin spaced relationship with the bottom of thev shell 7 by means of the feet 25 is formed a boss 27 iii which are lformed holes 28v which are smaller at the exterior than they are on their interior ends. Numeral 29 designates a pipe with threaded ends, the

left end of which is secured inthreaded ena .i i

gag'ement withthe right end ofthe sediment meral 30'designates-a second sediment collec,-

' lector which is the exact duplicate of sediment collector 23 with the additiony of av threaded hole 31 on its upper surface. In-

ltothis threaded hole 3l is screwed the pipe 32 `which is of the same length astlie pipe 16. `Numeral 33 designates a second skimmer which'is secured at its left end in threaded engagement tothe pipe 19 and at its'bot- 'lio y toni to the pipe 32. The skiinn'iei's 17a1id 'f 33, together with the pipe 19, are maintained Y ina stateof parallelismrelative the .shell of tl'ijeboilerabout an inch anda halt below' the Vrnormal VWater level in the boiler. Asmany skimmers and sedimentv collectors maybe added as is desired. For example in Fig.

, y 1 athird sediment collector 34`and`a third skimmer are shown. .1 The number of;

skimmers and sedimentcollectors that are used depend on thelengthot the boilerv and the amount .of-dirtand scalefthat iste be Vvremoved. n l l fused andv Where a great dealof dirt is to Inlfa rlong boiler more `Will be be removed, more Will be used. rllhepipes 16,

32, and the pipe 36, etc., connecting the sedi-.I `ment collectors With the skimmers, pass between the tubes 11, as vbest shown in FigQ. The tubes prevent a diametral movement of Y my cleaner@VVh'enthe boiler is under presf surejfthe shell13is forced .securely against the shellTJ' When it is desiredjto clean the j Vboiler',thev cover 9is removed and'the/pressure forces the light substance,together with Y. thefwater,"through' the -skimmersV and the pipes,-` such asj1'6, 32, either directly as through the pipe 16,. or indirectly, as lthrough the'pipef32, etc.tofthe shell 13 y'and on throughftheblovvoi' opening 8. .The heavy sediment and scale that has been deposited at ythe bottom of the boilerY is forced through the -Vho'les such yas those in the sediment col,-

f lector through pipingv systemprcviously described, through.. the Lritting 14 into the shell1'3jand` out through lthe blow-oifopenn ing-1S. It Ywill be seen that" in this Vmanner both the heavy materialandthey light material' Will be removed. By supporting the skimmers labove-the sediment collectors and having them 1ntluid. communication, materialfrom the skimmers may take the short path lthrough sucha pipe as 32 or 36 tothe sediment collectoigfsuch as 23 or V30 to the blow-off opening 8. The apertures in the sediment collectors andthe skimmers' Aare tapered through the Wall Wit-h a smallopeningcn the "outside in- .or-der, to` prevent the holes from becoming clogged. `Any sub-- stance that can enter theV hole will be able Ytol go through the hole on account ofthe enlarged section passing inwardly. l f

v What I claim andmean tosecure'by' Letters Patentris:

TheY combination Vivi-ith a boiler ofa cleaner therefor,saidcleaner comprising a shellpositionedY over the blo'vvj-off opening of a boiler, afvertical and al horizontal pipe in Huid com* munication l with saidf shell, 4sediment collectors connected in series in ysaid horizontal pipe, a secondhorizoi'ital pipe, a skimmer connecting said vertica'lpipe and said second horizontal pipe, VVadditional skimmers con-- 

